c++ 正则表达式列出目录中除隐藏文件以外的所有文件（以.开头）

Question

I have a string array of the list of directory contents.

I want to list all the strings that don't start with "."

So, from the list, the regex should not include ".hid.mp3" , ".Hidden.txt" .

Can someone suggest the fileRegex for the following code?

string fileList[] = {"test.png", "Hellozip.zip", "123.mp3", "hid.mp3", "hid.file.png", "sp ace.png", "comm(a.mp3", ".Hidden.txt"};

for(auto& file : fileList)
{
    if (std::regex_match(file, std::regex(fileRegex, std::regex_constants::icase)) == true)
    {
        cout << file << " - Match\n";
    }
    else
    {
        cout << file << " - No Match\n";
    }
}

Expected output should be:

test.png - Match
Hellozip.zip - Match
123\.mp3 - Match
.hid.mp3 - No Match
hid.file.png - Match
sp ace.png - Match
comm(a.mp3 - Match
.Hidden.txt - No Match

I tried this, but it did not work:

"\[\\w-\]*\\.{0,1}\[\\w- ()\]*\\.(png|jpg|zip|mp3|txt)"

Edited: I can handle ".", ".." as special case, so removed from the question.

Answer 1

how about

 ^[^.].*$

seems to work